As expectations of China's role at tomorrow's G20 summit grow, a top economist has suggested that Beijing make it clear that it should not be saddled with a burden it cannot bear.

China can contribute in helping the world deal with the financial crisis and rebuild the financial order, but it should also make it clear that it is not capable of bailing out other countries, Tang Min said.

"It is not as strong an economy as some people thing," Tang, senior economist with the China Development Research Foundation - a think-tank affiliated to the State Council, or the Cabinet - told China Daily.